Results 11 to 20 of about 48,747 (277)
Astronomical Image Processing with Array Detectors [PDF]
Publications of the Astronomical Society of the Pacific, 2007 We address the question of astronomical image processing from data obtained with array detectors. We define and analyze the cases of evenly, regularly, and irregularly sampled maps for idealized (i.e., infinite) and realistic (i.e., finite) detectors. We
Houde, Martin, Vaillancourt, John E.
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Focal length determination for the 60cm telescope at Astronomical station Vidojevica [PDF]
Serbian Astronomical Journal, 2012 The focal length of a telescope is an important parameter in determining the angular pixel size. This parameter is used for the purpose of determining the relative coordinates (angular separation and positional angle) of double and multiple ...
Cvetković Z. +5 more
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Astronomical Camera Based on a CCD261-84 Detector with Increased Sensitivity in the Near-Infrared
Photonics, 2023 Herein, we describe the design, implementation and operation principles of an astronomical camera system, based on a large-format CCD261-84 detector with an extremely thick 200 μm substrate.
Irina Afanasieva +7 more
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Curved detectors for astronomical applications: characterization results on different samples [PDF]
Applied Optics, 2019 Due to the increasing dimension, complexity and cost of the future astronomical surveys, new technologies enabling more compact and simpler systems are required. The development of curved detectors allows to enhance the performances of the optical system used (telescope or astronomical instrument), while keeping the system more compact.
Lombardo, Simona +10 more
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Input Power and Effective Area in Terahertz Detector Measurement: A Review
IEEE Access, 2023 The field of terahertz (THz) science and technology research area have been exponentially growing recently, motivated by the increasing demand for safer security imaging, better quality control within manufacturing industries, space and astronomical ...
Arie Pangesti Aji +2 more
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Equalizing the Pixel Response of the Imaging Photoelectric Polarimeter Onboard the IXPE Mission
The Astronomical Journal, 2023 The Gas Pixel Detector is a gas detector, sensitive to the polarization of X-rays, currently flying onboard the Imaging X-ray Polarimetry Explorer (IXPE)—the first observatory dedicated to X-ray polarimetry.
John Rankin +20 more
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Near-Infrared InGaAs Detectors for Background-limited Imaging and Photometry [PDF]
, 2014 Originally designed for night-vision equipment, InGaAs detectors are beginning to achieve background-limited performance in broadband imaging from the ground. The lower cost of these detectors can enable multi-band instruments, arrays of small telescopes,
Croll, Bryce +2 more
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The AzTEC mm-Wavelength Camera [PDF]
, 2008 AzTEC is a mm-wavelength bolometric camera utilizing 144 silicon nitride micromesh detectors. Herein we describe the AzTEC instrument architecture and its use as an astronomical instrument. We report on several performance metrics measured during a three
C. M. Roberts +19 more
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The Growth of Interest in Astronomical X-Ray Polarimetry
Galaxies, 2018 Astronomical X-ray polarimetry was first explored in the end of the 1960s by pioneering rocket instruments. The craze arising from the first discoveries of stellar and supernova remnant X-ray polarization led to the addition of X-ray polarimeters to ...
Frédéric Marin
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Astronomical random numbers for quantum foundations experiments [PDF]
, 2018 Photons from distant astronomical sources can be used as a classical source of randomness to improve fundamental tests of quantum nonlocality, wave-particle duality, and local realism through Bell's inequality and delayed-choice quantum eraser tests ...
Brown, Amy +5 more
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